errant

erroneous

false

improper

inaccurate

incorret

mistaken

off the mark

on the wrong tack

on the wrong track

perverse

unsound

wrong

拓展：用false造句

1. 不正确的,谬误的;不真实的

What you're saying is false.

你所说的是假的。

I don't want to give you a false impression.

我不想给你一个虚假的印象。

2. 不诚实的;虚妄的

He was accused of giving false witness.

他被指控作伪证。

3. 不忠实的,无信义的[(+to)]

Better an open enemy than a false friend.

明枪易躲,暗箭难防。

4. 假的;伪造的;人造的

She wore false hair to the dance.

她戴着假发去参加舞会。